必填： 旧 Windows 版本的更新需要安装 SHA-2 代码签名支持。 (KB4493730 和 KB4474419) 年 4 月和 5 月发布的支持是必需的，才能继续接收这些版本的 Windows 的更新。 目前，所有旧版 Windows 更新签名都从 SHA1 和双 (SHA-1/SHA-2) 更改为 SHA-2。 Windows Server 2008 SP2. 2019 年 7 月 16 日

如果需要，分组详细信息行可以具有相应的摘要行-小计。 若要创建这些项，请执行下列操作之一： 使用“分类汇总”命令插入汇总行 使用“分类汇总”命令，可在每组明细行的紧下方或上方插入 SUBTOTAL 函数，并自动为您创建分级显示。有关使用 Subtotal 函数的详细信息，请参阅 SUBTOTAL 函数。

Note: The steps to install the 2019, 2016, or 2013 versions of Office Professional Plus, Office Standard, or a stand-alone app such as Word or Project might be different if you got Microsoft 365 through one of the following: Microsoft Workplace Discount Program (formerly known as Home Use Program): If you bought Microsoft 365 for personal use through your company, see Install Office through ...

使用近似匹配搜索 a 列中的值 1，在 a 列中找到小于等于 1 的最大值 0.946，然后返回同一行中 b 列的值。 2.17 =vlookup(1,a2:c10,3,true) 使用近似匹配搜索 a 列中的值 1，在 a 列中找到小于等于 1 的最大值 0.946，然后返回同一行中 c 列的值。 100 =vlookup(0.7,a2:c10,3,false)

To create the installation media, here's what you'll need: A PC with a reliable internet connection. The download time will vary, depending on your internet connection.

How to redeem a gift card, Xbox download code or token. Both Microsoft and Xbox gift cards and download codes and tokens work the same way: once redeemed to your Microsoft account, you can spend your balance at Microsoft Store online, on Windows or Xbox, and you can get downloads for the latest apps, games, movies, TV shows, and Surface, Xbox, and accessories.

Note: The Wireless Display app is available on devices running Windows 11 version 22H2 and newer.If you're running an earlier version of Windows, launch the Connect app by entering connect in the search box on the taskbar, and selecting Connect in the list of results. To find out which version of Windows you're running, see Which version of Windows operating system am I running?

Note: If a compatibility issue has been identified on your device that would disrupt your experience using Windows 11, we will temporarily delay your upgrade until the issue is resolved.Compatibility safeguard holds help ensure you have the best experience possible when upgrading and your productivity is not disrupted if critical apps or drivers are not yet compatible.

Microsoft 工作区折扣计划(以前称为家用许可计划)，则安装 2019、2016 或 2013 版的 Office 专业增强版、Office 标准版或独立应用（如 Word 或 Project）的步骤可能会有所不同：如果你通过公司购买了 Microsoft 365 供个人使用，请参阅通过工作场所折扣计划安装 Office。

从授权零售商处购买 Windows 11 的盒装副本. 产品密钥. 可在 Windows 11 包装盒内的标签上找到产品密钥。 从授权零售商处购买 Windows 11 的数字副本. 产品密钥. 可在购买 Windows 11 后收到的确认电子邮件中或在可通过零售商的网站访问的数字保险箱中找到产品密钥。